Catnips

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Catnips
Nepeta transcaucasica

Nepeta transcaucasica

Systematics
Order : Mint family (Lamiales)
Family : Mint family (Lamiaceae)
Subfamily : Nepetoideae
Tribe : Mentheae
Sub tribus : Nepetinae
Genre : Catnips
Scientific name
Nepeta
L.

The Catnip ( Nepeta ) is a plant genus within the family of the mint (Lamiaceae). The 250 to 300 species are distributed from Macaronesia through temperate areas of Eurasia to tropical East Africa. The real catnip was Perennial of the Year 2010.

Description and ecology

Illustration of the common catnip ( Nepeta cataria )
Pollen (400 ×) of the common catnip ( Nepeta cataria )
Habit and typical cross-opposite leaves of the grape catnip ( Nepeta racemosa subsp. Racemosa )
Inflorescence of Nepeta manchurensis with the zygomorphic flowers
Zygomorphic flower in detail of the common catnip ( Nepeta cataria )
Illustration from Flora Atlantica, sive, Historia plantarum quae in Atlante, agro Tunetano et Algeriensi crescunt , 1800, plate 123 from Nepeta multibracteata
Illustration from Johann Georg Sturm: Germany's flora in illustrations , 1796 of the real catnip ( Nepeta cataria )

Appearance

The catnip species usually grow as perennial, herbaceous plants , more rarely annual plants or subshrubs . The stems, which are square in all Nepeta species, are completely bald to very hairy. Mostly the color is similar to the color of the leaves, but in some species the stem is reddish in color due to anthocyanin deposits. The Nepeta species reach heights of between 20 cm ( Nepeta racemosa ) and 150 cm ( Nepeta grandiflora 'Pool Bank'). The lower species are hardly branched and develop a large number of basal shoots. The higher types are mostly densely branched. The growth form is broadly hemispherical to upright bushy, some species are also very spreading and fall apart. Other common characteristics are the square stems, in the edges of which there are strands of collenchyma.

Nepeta species are often rich in essential oils . Stems and leaves are almost always densely covered with glandular hairs or scales, so that the plants usually release a pleasant, aromatic scent.

leaves

The leaves are arranged opposite to each other ( dekussierte leaf position ) on the stem. The foliage leaf can be stalked (sometimes only formed in the lower third of the plant), via sessile to almost encompassing the stem. The simple leaf blades are 1 to 15 centimeters long and 0.5 to 10 centimeters wide and vary between very filigree forms and coarse forms. The outline is usually more or less egg-shaped to lanceolate with a round to heart-shaped base. The leaves are more rarely pinnate. The leaves are glabrous to very hairy, with Nepeta latifolia they are sticky hairy. The smooth leaf margins are often notched to severely toothed or wavy. The leaf color is usually a dull gray-green in various intensities, but dark green to light green colored leaves can also be found. In some species, the foliage is reddish in color due to anthocyanin deposits. Interactions between leaf type and habitat can be easily seen that adapted to the drought Nepeta have narrow, hairy leaves, the leaf color is always in the gray-green area. The more water and shade can be tolerated or used, the larger the leaf blade, the less hairy and more intensely colored the plant.

Inflorescences and flowers

The main flowering time is from the end of April / beginning of May to the beginning of August / September, with early-flowering species there is a small second flowering; If a pruning is carried out after the first flowering, the plant will be remounted with a mostly lush second flowering .

The flowers sit in pseudo whorls that are very loose to very dense. In some species the flowers are clearly stalked. The length of the inflorescences is between 5 and 25 centimeters, the pseudo whorls are often distributed over the stem with branches and bracts in between.

The flowers are 0.5 to 5 inches long. Nepeta species have hermaphroditic, typical five-fold mint flowers - flowers with a double flower envelope , are therefore more or less strongly zygomorphic and matched to the dorsiventral structure of the insects necessary for pollination . The five sepals are fused and form the bell-shaped, tubular calyx, which is sometimes two-lipped. Of the five fused petals , two form the upper lip and three form the lower lip. The four stamens are in pairs and have different lengths of stamens, these are fused with the petals . The crown is two-lipped, with the upper lip whole or two columns with a bearded, whole or notched middle lobe. The predominant flower color is blue-purple with variations in intensity or in the expression to the blue or purple-colored area. However, there are also white flowers like in Nepeta cataria , pink ones like in Nepeta parnassica and yellow flowered kinds like in Nepeta govaniana . In almost all species, the flower is provided with a drawing, at least on the lower lip. The four stamens, sitting parallel under the upper lip, are often shorter than the upper lip, but longer than the corolla tube. The Upper permanent and coenokarpe ovary is divided zweifächrig and by a false septum into four parts. The stylus stands between these parts . The stylus is split into two short scar branches.

fruit

The ripe Klausen fruit breaks down into four bulging Klausen . The four lonely Klausen are obovate and smooth or warty.

Location requirements

In Central Europe, wasteland near settlements , light shrubbery , roadsides, rubble sites and walls are populated by the few Nepeta species as well as dry heaths and light deciduous and pine forests (Hegi 1975). The shade-tolerant Nepeta species can be found in loose herb communities, in the undergrowth of sparse trees , on the edges of bushes and river banks .

Systematics and distribution

Taxonomy

The genus Nepeta was established in 1753 by Carl von Linné . The type species is Nepeta cataria L. The genus name Nepeta is derived from the Etruscan city of Nepete, today's Nepi in Latium. Synonyms for Nepeta L. are: Afridia Duthie , Cataria Adans. , Kudrjaschevia Pojark. , Pitardia Batt. ex pit. , Saccilabium Rottb. , Saussuria Moench , Schizonepeta (Benth.) Briq. , Oxynepeta (Benth.) Bunge .

External system

The genus Nepeta belongs to Subtribus Nepetinae from the tribe Mentheae in the subfamily Nepetoideae within the family of Labiatae (Lamiaceae).

Internal system

The genus Nepeta can be divided into two sections : Section Nepeta with hermaphrodite flowers and Section Oxynepeta with unisexual flowers. In Oxynepeta , the outer, larger zymous partial inflorescences are male and the inner, smaller ones are female.

Species and their distribution

The natural range of the Nepeta species includes the temperate zones of Asia with the Himalaya region up to altitudes of around 3300 meters, the Caucasus and Japan . A focus of biodiversity is in Iran, Afghanistan and Pakistan. There are 61 to 78 species in Iran. There are 42 to 55 species in Pakistan. There are 40 to 46 species in Afghanistan. There are around 42 species in China. There are about 41 species in India. There are 11 species in Nepal. About 82 species occur in Russia. There are around 35 species in Turkey. There are about 15 species in Iraq. Some species are found on the North African coasts and some in the mountainous regions of tropical Africa . The main distribution of the 24 to 27 species occurring in Europe is in the Mediterranean area. In the British Isles and Scandinavia, a few species occur only as neophytes . Few species are neophytes in North America and South Africa .

Botanical and Horticultural History

First mentions, around the 1st century AD, of a plant called Calamintha, which the Romans called Nepeta, can be found in Pedanios Dioscurides , a Greek doctor and herbalist. Whether this refers to Nepeta or Calamintha cannot be determined without any doubt. Their use as a medicinal plant can be proven from the 9th century AD. In 1760 Nepeta sibirica was introduced to England.

The crossing Nepeta × faassenii has been known since 1784 . Some of the standard varieties originated before World War II .

Ingredients and effects

Hildegard of Bingen sat powdered catnip at unruptured Skrofeln (d. H. Skrofulose) on the neck as a spread, puree or a cake. If the scrofula is broken, she recommends the fresh leaves as an envelope.

In 1735 K'Eogh wrote in the Irish Herbal about the Nepeta : “It promotes urination and menstruation; it drives out the stillborn child; it opens blockages in the lungs and uterus; it is good for internal bruises and shortness of breath ”. Nepeta species that occur in Turkey contain the essential oils citral , citronellol , geraniol , limonene , nepetalactone and spathulenol as well as tannins and bitter substances . As a tea, catnip has a diuretic, menstrual, abortive, anticonvulsant and antipyretic effect. In addition, it is said to work against vomiting diarrhea and, mixed with salt and eaten raw or cooked, help against worms.

Nepeta is also effective against yellow fever mosquitoes . In each of the tests, 20 mosquitoes were placed in large glass tubes, which were treated on one side with different doses of nepetalactone . After ten minutes there were only about four to five mosquitoes left on the nepetalactone treated sides. On a trial basis, Nepeta is used to protect stable cows against insect bites.

Nepeta grandiflora cultivar 'Dawn to Dusk'
Hybrid catnip ( Nepeta × faassenii )

Use as an ornamental plant

Nepeta species and varieties are mostly used in dry, sunny locations. Because it is unpretentious and requires little maintenance, it is also suitable for difficult locations, for example slopes, green roofs , traffic islands and all dry areas where intensive maintenance is hardly possible. Nepeta govaniana , Nepeta grandiflora , Nepeta manchuriensis , Nepeta sibirica , Nepeta subsessilis are suitable for fresh to moist borders , light-shaded beds and areas around the edges of trees .

The catnip is an easy-care, undemanding perennial with a long flowering time. It can be planted in dry places in the garden; regular watering is not necessary. The Nepeta thrives well on nutrient-poor soils.

The classic uses are border edging and in rock gardens . But there are also higher forms that can be used in the rear border area. A trough planting is also possible with Nepeta. It also plays an important role in near-natural gardens .

There are also hybrids developed in culture , for example hybrid catnip ( Nepeta × faassenii Bergmans ex Stearn = cross between Nepeta racemosa and Nepeta nepetella )

Individual evidence

  1. a b Nepeta at Tropicos.org. In: Flora of Pakistan . Missouri Botanical Garden, St. Louis
  2. Gustav Hegi , Hans J. Conert, Eckhart J. Hunter, Joachim W. Kadereit, Dimitri Hartl, Gerhard Wagenitz : Illustrated Flora of Central Europe . tape  5 , part 4, 2nd edition. Blackwell Wissenschafts-Verlag, 1975, ISBN 3-8263-2850-7 .
  3. ^ Nepeta at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 18, 2018.
  4. ^ A b c d Nepeta in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 17, 2018.
  5. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex ey ez fa fb fc fd fe ff fg fh fi fj fk fl fm fn fo fp fq fr fs ft fu fv fw fx fy fz ga gb gc gd ge gf gg gh gi gj gk gl gm gn go gp gq gr gs gt gu gv gw gx gy gz ha hb hc hd he hf hg hh hi hj hk hl hm hn ho hp hq hr hs ht hu hv hw hx hy hz ia ib ic id ie if ig ih ii ij ik il im in io ip iq ir is it iu iv iw ix iy iz ja jb jc jd je jf jg jh ji jj jk jl jm jn jo jp jq jr js jt ju jv jw jx jy jz ka kb kc kd ke kf kg kh ki kj kk kl km kn Rafaël Govaerts (Ed.): Nepeta. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 18, 2018.
  6. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai Xi-wen Li, Ian C.Hedge: Lamiaceae . In: Wu Zheng-yi, Peter H.Raven (Ed.): Verbenaceae through Solanaceae (=  Flora of China . Volume 1 ). tape 17 . Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1994, ISBN 0-915279-24-X , Nepeta , pp. 107 ( efloras.org - section description, online with the same text as the printed work).
  7. Tauheeda Hassan: Systematic studies on genus Nepeta L Lamiaceae in Kashmir Himalayas. Thesis Submitted to the University of Kashmir for the award of the Degree of Doctor of Philosophy (Ph.D.), 2010. PDF 2016.
  8. Deni Bown: Encyclopedia of Herbs and Their Uses , Herb Society of America, Dorling Kindersley, 1995, ISBN 978-0-7894-0184-7 , 424 pages.
  9. Sevcan Celenk, Tuncay Dirmenci, Hulusi Malyer, Adem Bicakci: A palynological study of the genus Nepeta L. (Lamiaceae) . In: Plant Systematics and Evolution . No. 276 . Springer Verlag, 2008, ISSN  1615-6110 , p. 105-123 , doi : 10.1007 / s00606-008-0062-7 .
  10. KHC Baser, N. Kirimer, M. Kurkcuoglu, B. Demirci: Essential Oils of Nepeta Species Growing in Turkey. In: Chemistry of Natural Compounds , Volume 36, No. 4, 2000, pp. 356-359.
  11. Catnip Oil repels bloodsucking flies. In: ScienceDaily. Retrieved March 8, 2011 .

literature

  • Richard Hansen , Friedrich Stahl: The perennials and their areas of life in gardens and green spaces . Ulmer, 1997, ISBN 3-8001-6630-5 .
  • Focko Weberling , Hans Otto Schwantes: Plant system. Introduction to systematic botany . UTB For Science, 2000, ISBN 3-8001-2545-5 .
  • Dieter Hess: The blossom. An introduction to the structure and function, ecology and evolution of flowers. With instructions for simple experiments . Ulmer, 1983, ISBN 3-8001-6147-8 .
  • Otto Schmeil , Jost Fitschen , Karlheinz Senghas, Siegmund Seybold: Flora of Germany and neighboring countries . Quelle & Meyer, Wiebelsheim 2000, ISBN 3-494-01252-0 .
  • Rob Proctor: Perennials. A garden that blooms again and again . DuMont Buchverlag, Cologne 1991, ISBN 3-7701-2797-8 .

Web links

Commons : Catnips ( Nepeta )  - Collection of images, videos and audio files